55 EX-12 SOUTHERN INDIANA GAS AND ELECTRIC COMPANY COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES For the Five Years Ended December 31, 1993 1993 1992 1991 1990 1989 (in thousands) EARNINGS AS DEFINED Net income $39,653 $36,767 $38,513 $37,691 $36,216 Add: Income Taxes: Current: Federal 5,897 13,049 14,176 12,025 13,404 State 1,312 2,444 2,436 1,642 2,116 Deferred, net: Federal 9,682 550 2,996 5,597 5,496 State 1,581 439 690 1,532 823 Deferred investment tax credit, net (1,868) (1,873) (1,877) (1,883) (1,878) Interest on long-term debt 18,437 17,768 18,238 18,249 18,102 Amortization of premium, discount and expense on debt 773 446 740 667 714 Other interest 746 461 719 572 2,173 Interest component of rent expense <F1> 405 391 382 369 351 Earnings as defined $76,618 $70,442 $77,013 $76,461 $77,517 FIXED CHARGES AS DEFINED Interest on long-term debt $18,437 $17,768 $18,238 $18,249 $18,102 Amortization of premium, discount and expense on debt 773 446 740 667 714 Other interest 746 461 719 572 2,173 Interest component of rent expense <F1> 405 391 382 369 351 Fixed charges as defined $20,361 $19,066 $20,079 $19,857 $21,340 Ratio of Earnings to Fixed Charges <f2) 3.76 3.69 3.84 3.85 3.63 <FN> NOTES: <F1> One-third of rentals represents a reasonable approximation of the interest factor. <F2> The ratios shown above do not reflect the fixed charge component in the Company's power contract with OVEC (see "Electric Business", page 1). Inclusion of the component in the computation would not have a significant effect on the ratios.